Ok, so thanks again, and here's my last ?. Specifically for Protools, updated 15" or previous? Needing to replace my dead ibook asap, so any is an improvement! But what's this business about the express card being replaced. Doesn't seem that will affect an audio user much, but which is the better choice for me, whilst being most cost effective?? (The good folks at Powermax seemed to waiver a bit, saying at first go with the old due to express card, and then changed to I should get the new cuz 4gb and cost) THANKS THANKS THANKS fer advice!